diff --git a/csst_mci_sim/csst_mci_sim.py b/csst_mci_sim/csst_mci_sim.py
index 46a2206c6cf34a66d8259ef56a05b21de9044347..80fb520f89b27b45ba2afbcb6ae26ef73bc8ae8f 100644
--- a/csst_mci_sim/csst_mci_sim.py
+++ b/csst_mci_sim/csst_mci_sim.py
@@ -1577,7 +1577,7 @@ class MCIsimulator():
                 
                 cx0,cy0=centroid(stamp_img.array)
                 
-                self.log.info('appfat= %s'%(self.appFatt))
+                ##self.log.info('appfat= %s'%(self.appFatt))
                 
                 if self.appFatt : 
                     #self.log.info('begin appfat ........')